Booting into 2nd Hard Drive

Hi everyone,
I recently purchased a new hard drive and installed Windows on it, so essentially my computer has two SATA drives with SATA0 (what I am using now) and SATA1 (what I would like to have the option of using).

The problem is, when the computer boots up, I no longer have a choice to pick between which Hard Drive to boot the computer into. Is there is a simple fix such as modifying boot.ini or something?

Thanks!
Kirupa :bandit: